Iron-Catalyzed Highly Enantioselective Addition of Silyl Enol Ethers to α,β-Unsaturated 2-Acyl Imidazoles
作者:Jinhu Wei、Jie-Sheng Huang、Chi-Ming Che
DOI:10.1021/acs.orglett.1c02699
日期:2021.9.3
FeII(N4) complex (N4 = (R,R)-N,N′-bis(2-isopropylquinolin-8-yl)-1,2-diphenylethane-1,2-diamine) was developed for the asymmetric conjugate addition of silyl enol ethers, including both acyclic ones and cyclohexenone-derived ones, to α,β-unsaturated 2-acyl imidazoles. This FeII complex is an effective chiral Lewis acid and was applied in the synthesis of an array of chiral 1,5-dicarbonyl synthons and cyclohexenone
开发了手性 Fe II (N4) 配合物 (N4 = ( R , R )- N , N '-bis(2-isopropylquinolin-8-yl)-1,2-diphenylethane-1,2-diamine) 用于不对称甲硅烷基烯醇醚(包括无环和环己烯酮衍生的)与 α,β-不饱和 2-酰基咪唑的共轭加成。这种 Fe II 配合物是一种有效的手性路易斯酸,用于合成一系列手性 1,5-二羰基合成子和环己烯酮衍生物,具有高产率和对映选择性(高达 99% ee)。